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Failure of Oil Well Drill Casing
During a routine hydrotest of a section of high strength steel drill casing in an oil well, the hydrotest plug separated from the casing causing a personal injury. APTECH performed an in-depth failure analysis of the casing pipe. This involved making detailed dimensional measurements of the thread region, strength measurements, chemical analyses, and metallurgical evaluations of a crack in the threaded region of the pipe. APTECH provided expert opinion regarding the relative contribution of the features which caused the failure.
| Our primary contacts for matters involving mechanical failures that occur during hydrotesting can be reached at (408) 745-7000. |
Satish Almaula
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Plant failure and root cause analysis; process and design engineering analysis; process technology development and testing; plant engineering, operations, maintenance and safety management; plant and process control system management. |
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| Michael Cronin, P.E. |
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Stress analysis, design evaluation, engineering mechanics |
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| Eric Sullivan, P.E. |
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Metallurgy, welding, failure analysis,
fire and explosion investigations, equipment, piping. |
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| Kimble Clark, Ph.D. |
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Failure analysis, heat transfer &
thermodynamics, process plant equipment failures & explosions, fuel
science, combustion, industrial fires and explosions. |
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| Geoffrey Egan, Ph.D. |
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Engineering mechanics, welding engineering, stress and fatigue analysis, risk analysis, nondestructive examination, project management. |
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